Statistics and Probabilitycon mamThe number of plants in each of 24 quadrats area as follows:9989 1212 7 65 11 89 8 6 12 117 813 7 9 7 8 9a)Which test is suitable to test if the plants are randomly located or not? Includechecking the criteria for the test.b)Use the test above to investigate whether the plants can be regarded as randomlylocated in the heathland. Use a 5% significance level.4

We are given a sample of 24 observations. a) Since there is no information regarding the…

Answered: The number of plants in each of 24…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Three randomly selected households are surveyed. The numbers of people in the households are 2, 4, and 9.Assume that samples of size n=2 are randomly selected with replacement from the population of 2, 4, and 9.Listed below are the nine different samples. Complete parts (a) through (c). 2,2 2,4 2,9 4,2 4,4 4,9 9,2 9,4 9,9 a. Find the median of each of the nine samples, then summarize the sampling distribution of the medians in the format of a table representing the probability distribution of the distinct median values. Sample Median Probability ▼ 4 3 2 ? ▼ 3 4 6 ? ▼ 4 6 8 ? ▼ 8.5 5.5 11 ? ▼ 6.5 13 10 ? ▼ 13.5 18 9 ? (Type integers or fractions. Use ascending order of the sample medians.) b. Compare the population median to the mean of the sample medians. Choose the correct answer below. A. The population median…
A biologist studying a hybrid tomato found that there is a probability of 0.70that the seeds will germinate. If the biologist plants 10 seeds, compute theprobability that: d. between 3 and 7 (inclusive, including 3 and 7) will germinate e. between 4 and 9 (exclusive) will germinate f. less than 5 will germinate g. more than 3 will germinate
Consider these sample data: x1=15, x2=9, x3=3, x4=22. a. Find n. b. Compute ∑xi. c.Determine x. a.n=
A random sample of cars categorized by small, medium and large was selected to investigate whether the size of the cars appears to affect highway fuel consumption. The factor levels a. size of cars O b. small, medium, large
1. Which of the folowing is a discrete random variable? a. the average amount of electricity consumed b. the of patients in a hospital c. the amount of paint used in repainting a building d.the average weight of female athlets
From this population data set: (3, 6, 9, 12, 18), how many possible samples with sample size of 3 can be chosen? O a. 3 O b. 5 O c. 10 Od. 15
5
Imagine a researcher asks a sample of five people to drive two types of cars and rate each of them on a scale of 1 to 25. The researcher wants to know: Is there is a difference in the ratings of the two types of cars. Below are the data collected: Type A: 20, 10, 11, 23, 7 Type B: 10, 11, 4, 12, 1 what type of T Test would be appropriate
A random sample of 7 oak trees from two forests was gathered. The results are shown below. Height of Trees (feet) Forest A Forest B 70 92 78 82 84 66 83 76 78 72 88 79 77 85 Based on the samples, which statement best compares the height of the oak trees in each forest? O The oak trees in Forest A are generally taller and have less variabillity than the oak trees in Forest B. The oak trees in Forest A are generally shorter and have less variabillity than the oak trees in Forest B. O The oak trees in Forest A are generally taller and have more variabillity than the oak trees in Forest B. The oak trees in Forest A are generally shorter and have more variabillity than the oak trees in Forest B.
Given the population of three children ages: 3, 4, and 5 a) Write the distribution of all samples means of size 2 b) Show that the mean of all sample means is equal to the population mean.
A class of students each took a sample of 25 reeses pieces. These are their results: Orange Yellow Brown 17 7 7 15 8 2 11 7 7 7 8 10 14 4 7 13 7 5 15 4 6 11 6 8 13 7 5 7 4 14 14 4 7 Take a guess concerning the population proportion of orange candies. Is this the same as the proportion of orange candies from your original sample? Why or why not? Your origional sample is: Orange Yellow Brown 13 7 5 j) Create a 95% confidence interval for the population proportion of orange candies.Point estimate: ? from the class data Critical z value: Standard error:Margin of Error: Lower Bound:Upper Bound:Interpretation:k) Did your guess in…
For 20 consecutive weeks, a store owner recorded a sample number of customers each week as follows: 300 400 324 326 327 329 415 362 321 375392 383 345 391 395 400 362 396 420 430 Compute for the following:a. Medianb. Sample Variancec. Skewness Coefficient (Use Pearson’s Second Coefficient)

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